The FotodioX Pro Series Olympus OM Lens Mount to Sony FZ Camera Adapter lets you use all Olympus OM 35mm lenses with a Sony FZ mount camera, such as the Sony PMW-F3/F5/F55 digital cinema camcorders. The stop-down mode feature needs to be used when metering, since the lens does not have the ability to have its aperture controlled by the camera body.